CHAMGAP
VERIFIEDPassed the Codex final verification and publication gate. Evidence-verification cutoff: 2026-07-19. AI was used for research and drafting; the existence of all 3 cited sources was verified at the original page, followed by blind grading, adversarial audit, and build validation. Methodology v1.0.
Verdict No. 723 · Search date 2026-07-19 · Methodology v1.0

Tegoprazan,
does it really help with Faster and superior heartburn relief and erosive-esophagitis healing versus proton-pump inhibitors?

30-Second Summary
C
Evidence Grade C · 46 · Safety caution
Erosive-esophagitis healing is clear, but broad claims of faster and superior performance over PPIs remain limited
Headache, diarrhea, abdominal discomfort, and nausea may occur, and uncertainties about infection, nutrient effects, and hypergastrinemia with long-term potent acid suppression should be considered.
What the
research shows
Tegoprazan is effective for healing erosive esophagitis and relieving reflux symptoms, but the target claim that it is faster and superior to proton-pump inhibitors is rated C. Eight-week healing was similar in direct comparisons, including 91.1% with tegoprazan and 92.8% with esomeprazole in a Chinese phase 3 trial. Meta-analytic superiority tests were null at four weeks, RR 1.05 (P=0.12), and eight weeks, RR 1.02 (P=0.35). A 46-participant nighttime-symptom trial also had a null primary endpoint for faster relief (P=0.151). Separating efficacy from comparative superiority gives C with 46 points.
What the
ads claim
Marketing can turn rapid pharmacologic acid suppression into immediate symptom relief and superior healing over every PPI. Evidence supports efficacy and PPI noninferiority, but not broad comparative superiority.
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Useful facts when choosing a product

  • Tegoprazan is a P-CAB that competitively blocks potassium at the final step of gastric acid secretion and is prescribed in South Korea for approved indications including erosive gastroesophageal reflux disease.
  • Dose and treatment duration differ across erosive disease, nonerosive reflux, and maintenance indications, so the specific K-CAB prescription and product label should be followed.
  • Headache, diarrhea, abdominal discomfort, and nausea can occur, while overall adverse-event rates in trials were generally similar to comparator PPIs.
  • As with other potent acid suppressants, prolonged use raises uncertainties involving infection, nutrients, and hypergastrinemia, making diagnosis and follow-up preferable to unsupervised long-term use.
ID

Chamgap Semantic Classification Code

Candidate index · review held

M.tegoprazan.UNK.faster-and-superior-heartburn-relief-and-erosive-esophagitis-healing.superiority.active

Medicinal interventions > Tegoprazan > Unknown > Faster and superior heartburn relief and erosive-esophagitis healing > Superiority claim > Active comparator

An automated migration candidate, not an issued permanent code; exact claim scope remains under review. This machine-generated migration candidate helps retrieval but is not a permanent assignment. The original verdict ID and URL remain authoritative.

Download semantic index (JSON) · Codebook v1

Gap Measurement · Verdict 723 · C 46
What advertising claims
What independent, higher-quality research supports
△ GAP
01

What the research actually shows

A Korean phase 3 trial of 302 participants reported identical eight-week healing of 98.9% across tegoprazan and esomeprazole groups, confirming noninferiority. A Chinese phase 3 trial likewise reported similar eight-week healing of 91.1% versus 92.8%. The Bhatti meta-analysis found no superiority at four weeks, RR 1.05 (P=0.12), or eight weeks, RR 1.02 (P=0.35). In 46 participants with nighttime heartburn and sleep disturbance, the first symptom-free interval numerically favored tegoprazan but the primary endpoint was null at P=0.151. These results support efficacy and PPI noninferiority, not superior healing or symptom relief.

02

Why this is classified as C (46)

Healing and symptom relief themselves have active-controlled evidence consistent with B because tegoprazan is noninferior to PPIs. The target claim, however, is faster and superior performance versus PPIs. Similar eight-week healing, null meta-analytic superiority at four and eight weeks, and a null nighttime-symptom primary endpoint directly fail to establish that comparison, giving the superiority subclaim D and the combined headline C with 46 points. Safety remains separate.

Counterpoint. This verdict does not mean tegoprazan is ineffective. It is noninferior to PPIs for healing and symptom relief, but the separate claim of faster and superior performance across PPIs has not been established in direct comparisons.

Rejudgment record. New verdict — Accepted B-level evidence that tegoprazan heals erosive esophagitis and relieves symptoms noninferiorly to PPIs, but assigned D to comparative speed and superiority because Chinese phase 3 healing was similar, meta-analytic superiority was null at four and eight weeks, and the nighttime-symptom primary endpoint was null; the combined headline remains C

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Sub-claim grades by effect

This ingredient is marketed for several effects. A single overall grade blends strong and weak claims together, so each effect is graded separately here. The overall grade reflects the strongest disconfirming or core claim.

Effect (sub-claim)GradeBasis
Erosive-esophagitis healing and symptom relief noninferior to PPIsBActive-controlled randomized trials found similar eight-week healing rates and established noninferiority to PPIs.
Superior healing and symptom relief versus PPIsDDirect comparisons found no significant superiority at four or eight weeks and a null primary endpoint for nighttime symptoms.
Extending faster mechanistic onset into clinical superiority?Faster acid suppression alone cannot establish superior patient-centered healing or symptom relief.
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Cross-check — AI research and Codex final gate

AI was used for research and drafting. Blind grading, adversarial audit, and the methodology boundary rules were then reapplied before Codex performed the final evidence, grade, copy, and build checks. If a grade cannot be narrowed, both evidence positions and their reasons are published.
03

Evidence Table

StudyDesignSampleFundingEndpointResultWeight
Lee KJ et al. 2019Multicenter randomized double-blind esomeprazole-controlled noninferiority phase 3 trial302 participants with erosive esophagitisManufacturer support and employee coauthorship from CJ HealthcareCumulative endoscopically confirmed healing of erosive esophagitis by eight weeksHealing was 98.9% with tegoprazan 50 mg, tegoprazan 100 mg, and esomeprazole 40 mg, showing noninferiority but not superiority.Pivotal phase 3 healing evidence that limits superiority
Kim JS et al. 2023Multicenter double-blind randomized comparison of tegoprazan and esomeprazole46 participants with erosive esophagitis, nighttime heartburn, and sleep disturbanceProduct trial with HK inno.N employee coauthorsTime to the first nighttime heartburn-free intervalThe interval was numerically shorter at 1.5 versus 3 days, but the difference was not significant (P=0.151).Null primary endpoint for faster symptom relief
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Receipt — 3 References

All 3 cited sources were verified for existence at the original page (as of 2026-07-19).

Lee KJ, Son BK, Kim GH, et al. Randomised phase 3 trial: tegoprazan, a novel potassium-competitive acid blocker, vs. esomeprazole in patients with erosive oesophagitis. Aliment Pharmacol Ther. 2019;49(7):864-872. PMID: 30843245. PMCID: PMC6594096. DOI: 10.1111/apt.15185.
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Kim JS, Seo SI, Kang SH, et al. Effects of Tegoprazan Versus Esomeprazole on Nighttime Heartburn and Sleep Quality in Gastroesophageal Reflux Disease: A Multicenter Double-blind Randomized Controlled Trial. J Neurogastroenterol Motil. 2023;29(1):58-64. PMID: 36581325. PMCID: PMC9837551. DOI: 10.5056/jnm22104.
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Bhatti MI, Safiullah M, Ijaz A, et al. Tegoprazan Versus Proton Pump Inhibitors for Erosive Esophagitis: A Meta-Analysis of Noninferiority Randomized Controlled Trials. JGH Open. 2025;9(11):e70298. PMID: 41229531. PMCID: PMC12602160. DOI: 10.1002/jgh3.70298.
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Research and draft: AI used · Cross-check: blind grading and adversarial audit
Final verification and publication gate: Codex · Evidence date: 2026-07-19 · Corrections: none
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Cite this verdict

Tegoprazan x faster and superior heartburn relief and erosive-esophagitis healing versus proton-pump inhibitors Evidence Grade C card
[Chamgap] Tegoprazan x faster and superior heartburn relief and erosive-esophagitis healing versus proton-pump inhibitors — Evidence Grade C·46. 3 cited sources checked. Source: https://chamgap.com/en/verdicts/gut/tegoprazan-faster-superior-heartburn-relief-erosive-esophagitis-healing-vs-ppi/ · CC BY 4.0

CC BY 4.0 — free to use with attribution; do not distort grades, numbers, or verdict meaning.

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What this document does and does not do

Chamgap is an information source. It reports what research has and has not confirmed; it does not tell readers what to take or buy. That decision belongs to readers and, when needed, medical or legal professionals. This verdict reflects literature available up to the search date and may change as new research appears. Nothing here is medical advice.
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